4576221 has 12 divisors (see below), whose sum is σ = 7118748. Its totient is φ = 2816064.

The previous prime is 4576193. The next prime is 4576259. The reversal of 4576221 is 1226754.

It can be written as a sum of positive squares in 2 ways, for example, as 632025 + 3944196 = 795^2 + 1986^2 .

It is not a de Polignac number, because 4576221 - 2⁶ = 4576157 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 4² + 5⁹ + 7³ + 6⁴ + 2¹⁹ + 2²¹ + 1 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4576261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19440 + ... + 19673.

It is an arithmetic number, because the mean of its divisors is an integer number (593229).

Almost surely, 2^4576221 is an apocalyptic number.

It is an amenable number.

4576221 is a deficient number, since it is larger than the sum of its proper divisors (2542527).

4576221 is a wasteful number, since it uses less digits than its factorization.

4576221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39132 (or 39129 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4576221 is about 2139.2103683369. The cubic root of 4576221 is about 166.0232826490.

The spelling of 4576221 in words is "four million, five hundred seventy-six thousand, two hundred twenty-one".